关于最优证券组合，以下说法不正确的是( )。A．最优证券组合_爱下问搜题

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问题单项选择题

关于最优证券组合，以下说法不正确的是( )。

A．最优证券组合是无差异曲线簇与有效边界的切点所表示的组合

B．一个风险极度爱好者将选取最小方差组合作为最佳组合

C．不同投资者的无差异曲线簇可获得各自的最佳证券组合

D．投资者的偏好通过他的无差异曲线来反映

答案

参考答案：B

阅读理解

阅读理解。

Hong Kong Disneyland (迪斯尼乐园) opened on September 12, 2005 and became the
first Disney Theme Park in China. It looks like the Disney theme park, which is in the USA,
but has a Chinese flavor (特色风情) to attract (吸引) millions of tourists from all over China.
The opening day was chosen for good luck. Its restaurants offer Chinese menus, and
Mickey Mouse and his friends can be seen wearing traditional Chinese costumes. The park
hopes to welcome five million visitors in its first year and is going to be very busy if the
facts about operations in Orlando Disney World are anything to go by.

                                   Orlando Disney World Facts and Figures
    The park employs (雇用)35,000 people.
    There are about 150,000 visitors on any one day in 2003.
     The park's 263 buses travel around 18 million miles every year.
     The park has more than 7 million trees and flowers.
     More than 50 million soft drinks are sold every year.
     People at the park consume (消费) 7 million hot dogs, 10 million hamburgers, 9 million
pounds of French fries every year.
     The park uses 606,000 pounds of bananas each year.
     The park orders more than 3.8 million ball-pens and 337,000 pencils every year.
     In 2004, the park recycled 18.3 million pounds of paper products.

1. Hong Kong Disneyland ____.

A. is the first Disney theme park in the world
B. looks like a Disney theme park in America
C. was built to welcome only Chinese people

2. Hong Kong Disneyland was decided to open on 12 September 2005 because ____.

A. it was a holiday
B. of no special reasons
C. it was for good luck

3. ____ people work in Orlando Disney World.

A. Five million
B. Two hundred thousand
C. Thirty-five thousand

4. We can infer (推断) from this passage that there are a lot of ____ in Orlando Disney World.

A. restaurants
B. animals
C. trains

5. Which of the following statements about Orlando Disney World is Not True?

A. People can take buses to travel around the park.
B. The park must be very beautiful and popular.
C. About 150,000 people visited the park in 2003.

判断题

生长猪日粮中缺锌时可引起皮炎。（）